28-letter words containing a, p, o, s, i
- vendor independent messaging — (networking) (VIM) An electronic mail API promoted by an industry group headed by Lotus Development. VIM is a competitor to Microsoft's MAPI.
- virgin islands national park — a national park on St. John Island, Virgin Islands: prehistoric Indian relics. 24 sq. mi. (62 sq. km).
- waterton lakes national park — a national park in W Canada, in S Alberta. 220 sq. mi. (570 sq. km).
- work projects administration — WPA.